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US 8,205,401 B2Granted
Roof vent and system
OwnerJohn F. Wardinventor
Life of this patent
Estimating the term…
Abstract
Disclosed is a cover for a tubular duct extending from a planar roof surface. The cover comprises a cap, a skirt and a closure. In use: the cap is disposed outwardly from said duct, to define a headspace outside said duct and an annular space surrounding the headspace; the skirt extends from the rim of the cap in surrounding, spaced relation to said duct; and the closure extends from the terminus of the skirt to said duct and is disposed in spaced relation to said surface. The skirt and closure have vanes formed therein. The vanes are oriented such that: precipitation driven by wind through the skirt into the interior of the cap is directed, as it passes through the skirt, towards the roof; and precipitation driven by wind through the closure into the interior of the cap is directed, as it passes through the closure, away from the duct.
Claims16
A cover for a tubular duct extending from a planar roof surface, the cover comprising:
- a cap portion disposed, in use, in spaced relation to said tubular duct, to define a headspace to which said tubular duct extends and an annular space surrounding the headspace;
- a peripheral outer skirt extending in use from a rim of the cap portion in surrounding, spaced relation to said duct;
- and
- a closure element which extends in use from a terminus of the outer skirt to said duct and is disposed in spaced relation to said roof surface, the peripheral outer skirt and the closure element having vanes formed therein, the vanes being oriented such that:
- precipitation driven by wind through the outer skirt into the interior of the cap portion is directed, as it passes through the outer skirt, towards the roof;
- and
- precipitation driven by wind through the closure element into the interior of the cap portion is directed, as it passes through the closure element, away from the duct.
4 more elements
A roof vent, for use with a roof having an aperture formed in a surface thereof, said roof vent comprising:
- a base member including:
- a tubular part disposed atop said roof surface in use to lead into said aperture;
- and
- a substantially planar part extending peripherally around and from said tubular part and sealingly mounted in use to said roof surface to seal the tubular part to said roof;
- and
- a cover including:
- a cap portion disposed, in use, in outwardly spaced relation to said tubular part, to define a headspace outside said tubular part and an annular space surrounding the headspace;
- a peripheral outer skirt extending in use from a rim of the cap portion in surrounding, spaced relation to said duct;
- and
- a closure element which extends in use from the terminus of the outer skirt to said duct and is disposed in spaced relation to said roof surface, the peripheral outer skirt and the closure element having vanes formed therein, the vanes being oriented such that:
- precipitation driven by wind through the outer skirt into the interior of the cap portion is directed, as it passes through the outer skirt, towards the roof;
- and
- precipitation driven by wind through the closure element into the interior of the cap portion is directed, as it passes through the closure element, away from the duct;
- and
- wherein the cover is, arranged, in use, with the tubular part of the base member defining the duct with which the cover is used.
12 more elements
A roof vent assembly, for use with a roof having an aperture formed in a surface thereof, the roof further having a pipe stack protruding at least toward said aperture, said roof vent assembly comprising:
- a base member including:
- a tubular part disposed atop said roof surface in use to lead into said aperture;
- and
- a substantially planar part extending peripherally around and from said tubular part and sealingly mounted in use to said roof surface to seal the tubular part to said roof;
- and
- a cover including:
- a cap portion disposed, in use, in outwardly spaced relation to said tubular part, to define a headspace outside said tubular part and an annular space surrounding the headspace;
- a peripheral outer skirt extending in use from a rim of the cap portion in surrounding, spaced relation to said tubular part;
- and a closure element which extends in use from the terminus of the outer skirt to said tubular part and is disposed in spaced relation to said roof surface, the peripheral outer skirt and the closure element having vanes formed therein, the vanes being oriented such that:
- precipitation driven by wind through the outer skirt into the interior of the cap portion is directed, as it passes through the outer skirt, towards the roof;
- and
- precipitation driven by wind through the closure element into the interior of the cap portion is directed, as it passes through the closure element, away from the tubular part;
- and
- an adapter including:
- a body disposed in use in snap-fit engagement with the base member to define a conduit leading through the tubular part, the conduit being adapted to receive the pipe stack;
- and
- a flapper operatively mounted to the body to allow the pipe stack to vent to atmosphere through the roof vent and to restrict flow through the conduit in the other direction.
14 more elements
A roof vent system comprising:
- base members, each base member including:
- a tubular part disposed in use atop a roof surface to lead into an aperture defined in said roof surface;
- and a substantially planar part extending peripherally around and from said tubular part and sealingly mounted in use to said roof surface to seal the tubular part to said roof;
- covers, each cover having:
- a cap portion disposed, in use, in outwardly spaced relation to a tubular part of a base member, to define a headspace outside said tubular part and an annular space surrounding the headspace;
- a peripheral outer skirt extending in use from the rim of the cap portion in surrounding, spaced relation to said tubular part;
- and a closure element which extends in use from the terminus of the outer skirt to said tubular part and is disposed in spaced relation to said roof surface, the peripheral outer skirt and the closure element having vanes formed therein, the vanes being oriented such that:
- precipitation driven by wind through the outer skirt into the interior of the cap portion is directed, as it passes through the outer skirt, towards the roof;
- and
- precipitation driven by wind through the closure element into the interior of the cap portion is directed, as it passes through the closure element, away from the tubular part;
- adapters, each adapter including:
- a body disposed in use in snap-fit engagement with a respective base member to define a conduit leading through the tubular part of the base member;
- and
- a flapper operatively mounted to the body to define a flapper valve which allows flow to atmosphere and restricts opposing flow;
- and
- couplers, each coupler having one end disposed, in use, in snug-fitting relation with a respective adapter body, and another end adapted to receive a stack.
13 more elements
Dependencies are inferred from the claim text.